Preform Blanks For Cutting Tools
Recommended Grades
Products
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Carbide Preforms
MH10F/UH12/EH12
Features
| Grades | Binder % | Hardness | T.R.S | Density | Grain Size | ISO Code | |
|---|---|---|---|---|---|---|---|
| HRA | HV10 | N/mm2 | g/cm3 | ||||
| MH10F | 10 | 91.8 | 1600 | 3800 | 14.45 | Submicro | K30 |
| An excellent general purpose grade to cover most of the cuttingapplications for materials of ISO P, M, K, N.Suitable for drilling, milling and reaming. | |||||||
| UH12 | 12 | 92.2 | 1660 | 4000 | 14.15 | Ultrafine | K40 |
| Gives high impact strength while maintaining excellent wear resistance.A universal grade for cutting Stainless Steel,Titanium Alloys, Nickel base alloy and other difficult to machine materials.Suitable for milling, drilling. | |||||||
| EH12 | 12 | 90.8 | 1460 | 3500 | 14.2 | Submicron | K40 |
| Suitable for tool shank and PCD tool body. | |||||||
Diameter Tolerance
| OD(mm) | Basic allowance(mm) | Sintering Tol.(mm) |
|---|---|---|
| > φ5-φ14 | 0.8 | ±0.2 |
| > φ14.1-φ25 | 1.0 | ±0.3 |
| > >φ25.1一φ48 | 1.2 | ±0.4 |
| >>φ48.1 | 1.6 | ±0.5 |
Center and Exit hole tolerance
| Hole dia (mm | Tolerance (mm) |
|---|---|
| >φ0.8一φ1.5 | ±0.1 |
| >φ1.6一φ3.0 | ±0.2 |
| >φ3.1一φ8.0 | 土 0.3 |
Length & Concentricity
| Basic allowance(mm) | Sintering Tol. (mm) | Concentricity |
|---|---|---|
| +(0.4+0.5%L) | ±0.5%L | <=0.3 |
| For example, if L=100mm, then it's basic allowance is +0.4+0.5%*100=0.9mm Sintering tolerance is ±0.5%*100= 100.9±0.5mm. | ||
